The list of candidates to lead the Food and Drug Administration is down to three. The contenders are reportedly acting FDA commissioner Ned Sharpless; Stephen Hahn, chief of radiation oncology at MD Anderson; and Harvard dermatology professor Alexa Boer Kimball. The nomination deadline is November 1. (Endpoints)

High levels of vitamin E acetate have been linked to the mysterious vaping illnesses. The New York State Department of Health said the high levels of vitamin E acetate were found in nearly all the vapes that contained cannabis. (NBC News)

The World Health Organization has partnered with Facebook to stop vaccine misinformation. Both Facebook and Instagram will direct users searching about vaccines to the WHO or the Centers for Disease Control and Prevention website about vaccines. (CNBC

Cigna will fully cover expensive gene-therapy treatments. The plan will cover the two approved gene therapies on the market, Novartis’ Zolgensma and Spark Therapeutics’ Luxturna, which cost $2.1 million and $850,000, respectively. (Reuters)

Opioid overdose deaths are surging in Australia. There were 1,119 opioid deaths in 2016 in the country, and 400,000 have died from opioids over the last decade. Drugmakers marketed opioids aggressively to doctors in Australia. (Associated Press)